postinst is in gdm 3.10.0.1-0ubuntu3.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | #!/bin/sh
set -e
. /usr/share/debconf/confmodule
THIS_PACKAGE=gdm
DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager
# creating gdm group if it isn't already there
if ! getent group gdm >/dev/null; then
addgroup --system --quiet gdm
fi
# creating gdm user if it isn't already there
if ! getent passwd gdm >/dev/null; then
adduser --system --quiet \
--ingroup gdm \
--home /var/lib/gdm --no-create-home \
--shell /bin/false \
gdm
usermod -c "Gnome Display Manager" gdm
fi
# Creating nopasswdlogin group if he isn't already there.
# That enables the password-less login feature in the users-admin
# tool of the gnome-system-tools for users that belong to it,
# and which is working thanks to GDM's PAM policy.
if ! getent group nopasswdlogin >/dev/null; then
addgroup --system nopasswdlogin
fi
if [ -d /var/lib/gdm ]; then
chown -R gdm:gdm /var/lib/gdm
chmod 0750 /var/lib/gdm
fi
# debconf is not a registry, so we only fiddle with the default file if it
# does not exist
if ! [ -e "$DEFAULT_DISPLAY_MANAGER_FILE" ]; then
DEFAULT_DISPLAY_MANAGER=
if db_get shared/default-x-display-manager; then
DEFAULT_DISPLAY_MANAGER="$RET"
fi
if [ -n "$DEFAULT_DISPLAY_MANAGER" ]; then
DAEMON_NAME=
if db_get "$DEFAULT_DISPLAY_MANAGER"/daemon_name; then
DAEMON_NAME="$RET"
fi
if [ -z "$DAEMON_NAME" ]; then
# if we were unable to determine the name of the selected daemon (for
# instance, if the selected default display manager doesn't provide a
# daemon_name question), guess
DAEMON_NAME=$(which "$DEFAULT_DISPLAY_MANAGER" 2>/dev/null)
fi
if [ -n "$DAEMON_NAME" ]; then
echo "$DAEMON_NAME" > "$DEFAULT_DISPLAY_MANAGER_FILE"
fi
fi
fi
# debconf hangs if gdm gets started below without this
db_stop || true
# update-rc.d levels
S=30
K=01
if [ "$1" = configure ] && dpkg --compare-versions "$2" lt-nl "3.2"; then
# Remove 3.0 gsettings configuration - now we use dconf
rm -f /var/lib/gdm/gschemas.compiled
fi
if [ "$1" = configure ] && dpkg --compare-versions "$2" lt-nl "3.4" \
&& [ -d /var/lib/gdm ]; then
# Remove anything GConf related
(
cd /var/lib/gdm
rm -rf .gconf .gconf.mandatory .gconf.path .gconfd
)
fi
if [ ! -f /etc/pam.d/gdm-launch-environment ]; then
ln -s gdm-autologin /etc/pam.d/gdm-launch-environment
fi
if [ ! -f /etc/pam.d/gdm-password ]; then
ln -s gdm /etc/pam.d/gdm-password
fi
if [ -L /etc/pam.d/gdm-welcome ]; then
rm -f /etc/pam.d/gdm-welcome
fi
if dpkg-maintscript-helper supports rm_conffile 2>/dev/null; then
dpkg-maintscript-helper rm_conffile /etc/X11/Xsession.d/60xdg_path-on-session 3.0.4-0ubuntu4 -- "$@"
fi
# Automatically added by dh_installinit
if [ -x "/etc/init.d/gdm" ]; then
if [ ! -e "/etc/init/gdm.conf" ]; then
update-rc.d gdm defaults >/dev/null
fi
fi
# End automatically added section
# Automatically added by dh_installinit
update-rc.d -f gdm remove >/dev/null || exit $?
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/gdm/greeter.gconf-defaults 3.4 -- "$@"
# End automatically added section
exit 0
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